Ember.js Route setupController() Method

Ember.js is an open-source JavaScript framework used for developing large client-side web applications based on Model-View-Controller (MVC) architecture. Ember.js is one of the most widely used front-end application frameworks. It is made to speed up development and increase productivity. Currently, it is utilized by a large number of websites, including Square, Discourse, Groupon, Linked In, Live Nation, Twitch, and Chipotle.

The setupController() method is used to set up the controller for the current route.

Syntax:

setupController( controller, model, transition );

Parameters:

• controller: It is the controller instance. 
• model: It is set to the model property of the controller.
• transition: It is an ember transition.

Return type: The method doesn’t return any value.

Steps to Install and Run Ember.js:

Step 1: To run the following examples you will need to have an ember project with you. To create one, you will need to install ember-cli first. Write the below code in the terminal:

npm install ember-cli

Step 2: Now you can create the project by typing in the following piece of code:

ember new <project-name> --lang en

To start the server, type:

ember serve

Example 1: Type the following code to generate the route for this example:

ember generate route setupController1

app/routes/setupController1.js

Javascript

import Route from '@ember/routing/route';
import EmberObject from '@ember/object';

export default class FruitsRoute extends Route {
    fruits = [
        EmberObject.create({
            name: 'Lady Finger',
            isFruit: false,
            color: 'green',
        }),
        EmberObject.create({
            name: 'Brinjal',
            isFruit: false,
            color: 'purple',
        }),
        EmberObject.create({
            name: 'Apple',
            isFruit: true,
            color: 'red',
        }),
        EmberObject.create({
            name: 'Grapes',
            isFruit: true,
            color: 'green',
        }),
        EmberObject.create({
            name: 'Mango',
            isFruit: true,
            color: 'yellow',
        }),
        EmberObject.create({
            name: 'Watermelon',
            isFruit: true,
            color: 'red',
        }),
        EmberObject.create({
            name: 'Orange',
            isFruit: true,
            color: 'orange',
        }),
    ];
    item2;
    item3;

    model() {
        this.set('[]', this.fruits);
        return this;
    }
    setupController(controller, model) {
        super.setupController(controller, model);
        controller.set('fruits', this.fruits);
    }
}

app/controllers/setupController1.js

Javascript

import Ember from 'ember';
import { addObject, isAny, isEvery } from '@ember/array';
import EmberObject from '@ember/object';

export default Ember.Controller.extend({
    actions: {
        insertItem(data) {
            let temp2 = '';
            this.fruits.forEach(
                (item) => (temp2 +=
                    item.getProperties(data)[data] + '\n')
            );
            alert(temp2);
        },
        flip() {
            let data = this.fruits.reverseObjects();
            this.fruits.forEach((item, idx) =>
                item.setProperties(temp2.at(idx)));
        },
    },
});

app/templates/setupController1.hbs

HTML

{{page-title "setupController"}}
<h3>Fruit's Lists :</h3>
<table>
    <tr>
        <th>name</th>
        <th>isFruit</th>
        <th>color</th>
    </tr>
    {{#each this.fruits as |detail|}}
        <tr>
            <td>{{detail.name}}</td>
            <td>{{detail.isFruit}}</td>
            <td>{{detail.color}}</td>
        </tr>
    {{/each}}
</table>
<br />
<div>
    <label>Enter Attribute: </label>
    {{input value=this.item3}}
</div><br />
<div>
    <input
        type="button"
        id="print-item"
        value="Print Attribute's value"
        {{action "insertItem" this.item3}}
    />
</div>
<br />
<div>
    <input
        type="button"
        id="flip-student"
        value="Flip List"
        {{action "flip"}}
    />
</div>
{{outlet}}

Output:

setupController output1

Example 2: Type the following code to generate the route for this example:

ember generate route setupController2

app/routes/setupController2.js

Javascript

import Route from '@ember/routing/route';
import Ember from 'ember';
import EmberObject from '@ember/object';
import EmberResolver from 'ember-resolver';

export default class PartyRoute extends Route {
    students = [
        EmberObject.create({
            Name: 'Balit',
            skill: 'Python',
            Id: 'stu2',
            gender: true,
        }),
        EmberObject.create({
            Name: 'Yashu',
            skill: 'PHP',
            Id: 'stu0',
            gender: false,
        }),
        EmberObject.create({
            Name: 'Sam',
            skill: 'R',
            Id: 'stu1',
            gender: true,
        }),
        EmberObject.create({
            Name: 'Pokhu',
            skill: 'JavaScript',
            Id: 'stu3',
            gender: true,
        }),
        EmberObject.create({
            Name: 'Tanu',
            skill: 'Java',
            Id: 'stu4',
            gender: false,
        }),
        EmberObject.create({
            Name: 'Arabh',
            skill: 'c++',
            Id: 'stu5',
            gender: true,
        }),
    ];

    model() {
        return this.students;
    }
    setupController(controller, model) {
        super.setupController(controller, model);
        controller.set('students', this.students);
        controller.set('temp', this.temp);
    }
}

app/controllers/setupController2.js

Javascript

import Controller from '@ember/controller';
import { action, find } from '@ember/object';
import Ember from 'ember';

export default class Array2Controller extends Controller {
    @action
    print() {
        let temp2 = '';
        this.students.forEach(
            (item) => (temp2 +=
                item.getProperties('Name')['Name'] + '\n')
        );
        alert(temp2);
    }
    @action
    flip() {
        let temp2 = this.students.reverseObjects();
        this.students.forEach((item, idx) =>
            item.setProperties(temp2.at(idx)));
    }
}

app/templates/setupController2.hbs

HTML

{{page-title "setupController"}}
<h3>
    List of Students:
</h3>

<table>
    <tr>
        <th>Name</th>
        <th>skill</th>
        <th>Id</th>
        <th>Gender</th>
    </tr>
    {{#each this.students as |detail|}}
        <tr>
            <td>{{detail.Name}}</td>
            <td>{{detail.skill}}</td>
            <td>{{get detail "Id"}}</td>
            <td>{{if detail.gender "Male" "Female"}}</td>
        </tr>
    {{/each}}
</table>
<br />
<input
    type="button"
    id="set-code"
    value="Print Student details"
    {{action "print"}}
/>
<br />
<br />
<br />
<input type="button" id="flip-student"
       value="Flip List" {{action "flip"}} />

Output:

setupController output2

Reference: https://api.emberjs.com/ember/4.6/classes/Route/methods/setupController?anchor=setupController